The adoption of the Elastic Common Schema (ECS) in the Elastic Stack 7.0 marked a significant shift in data ingestion, enhancing observability by standardizing fields across logs, metrics, and traces. This schema simplifies the correlation of events, making it easier to track and analyze system performance and issues. By unifying fields such as host names and IP addresses, ECS facilitates seamless data queries across different sources, thereby improving the functionality of Elastic's Infrastructure, Logs, APM, and Uptime UIs. The implementation of ECS reduces field discrepancies, allowing for better data visualization and understanding within these UIs. Additionally, ECS supports cross-cluster search, enabling users to access and analyze data from multiple Elasticsearch clusters, which is particularly beneficial for global operations. As ECS evolves, it promises to further streamline data management, encouraging users to map their own data to the schema for consistent analysis and interpretation.